Integer scaler (only when using PDO SINT16)

It may be useful to output analog values slightly beyond the nominal output range OFSV_nom, e.g. to compensate for power losses or to transport diagnostic information. For this reason, the optional Extended Range “107%” has been introduced in Beckhoff analog channels (support depends on the device). The definition for 16 bits is as follows:

Setting:

Index 0x80nD:12 = “Extended Range” (default setting)
The channel operates up to the technical output range OFSV_techn, which is approx. 107% of the nominal output range.
For the Extended Range, 16-bit SINT PDO (16 bits + sign) is the nominal. OFSV = 100%, the PDO value ±30518 (0x7736) has been set. Accordingly, the displayable output range now extends to 0x7FFF = 32767 ~ 107.37% of the nominal output range.
Index 0x80nD:12 = “Legacy Range”
The channel operates up to 100% of the nominal output range.
Accordingly, 0x7FFF = 32767 is to be interpreted as 100% of the nominal OFSV.

Integer scaler (only when using PDO SINT16) 2: — Fig.222: Setting index 0x80nD:12, “Legacy Range”, “Extended Range”

Depending on the interface, this means the following for the SINT16 -> Real32 conversion in the controller:

Output range ±10 V (bipolar)

Integer scaler (only when using PDO SINT16) 3: — Fig.223: Output range ±10 V (bipolar)

Output range 0…10 V (unipolar)

Integer scaler (only when using PDO SINT16) 4: — Fig.224: Output range 0…10 V (unipolar)

Output range ±20 mA (bipolar)

Integer scaler (only when using PDO SINT16) 5: — Fig.225: Output range ±20 mA (bipolar)

Output range 0…20 mA (current loop)

Integer scaler (only when using PDO SINT16) 6: — Fig.226: Output range 0…20 mA (current loop)

Output range 4…20 mA (current loop)

Integer scaler (only when using PDO SINT16) 7: — Fig.227: Output range 4…20 mA (current loop)